In this research, we reported a cost-effective and an environmentally friendly technique for synthesis of gold nanoparticles supported on alumina (Al2O3/AuNPs) using Tabebuia aurea leaf extract (TAE) as non-toxic reducing agent, efficient stabilizer, and weak base source without adding any surfactants. Al2O3/AuNPs was characterized using various techniques including UV-Visible Spectrophotometer, Fourier-transform Infrared (FT-IR) spectroscopy, X-Ray diffraction (XRD), and Particle Size Analyzer (PSA). AuNPs was successfully synthesized using HAuCl4 as precursor. The characterization of UV-Vis Spectrophotometer shows that AuNPs colloidal was formed at 0.15 % TAE. FTIR characterization of Al2O3 shows Al-OH band at 1505 cm-1 and Al-O band at 680 cm-1. Phase of Al2O3 was amorphous confirmed by XRD. The particle size distribution average of Al2O3/AuNPs was about 43 nm. The reduction percentage of methylene blue using Al2O3/AuNPs catalyst was 70.41 % for 120 min.
|Journal||IOP Conference Series: Materials Science and Engineering|
|Publication status||Published - 28 Apr 2020|
|Event||3rd International Symposium on Current Progress in Functional Materials 2018, ISCPFM 2018 - Depok, Indonesia|
Duration: 8 Aug 2018 → 9 Aug 2018
- catalytic activity
- methylene blue reduction
- Tabebuia aurea